全文获取类型
收费全文 | 64068篇 |
免费 | 4414篇 |
国内免费 | 2103篇 |
专业分类
耳鼻咽喉 | 246篇 |
儿科学 | 889篇 |
妇产科学 | 736篇 |
基础医学 | 7942篇 |
口腔科学 | 811篇 |
临床医学 | 5081篇 |
内科学 | 14576篇 |
皮肤病学 | 830篇 |
神经病学 | 3383篇 |
特种医学 | 1261篇 |
外国民族医学 | 291篇 |
外科学 | 4418篇 |
综合类 | 9550篇 |
现状与发展 | 5篇 |
预防医学 | 4783篇 |
眼科学 | 942篇 |
药学 | 8625篇 |
6篇 | |
中国医学 | 3255篇 |
肿瘤学 | 2955篇 |
出版年
2023年 | 475篇 |
2022年 | 940篇 |
2021年 | 1241篇 |
2020年 | 1217篇 |
2019年 | 1897篇 |
2018年 | 1970篇 |
2017年 | 1672篇 |
2016年 | 1653篇 |
2015年 | 1819篇 |
2014年 | 6628篇 |
2013年 | 5871篇 |
2012年 | 4626篇 |
2011年 | 4564篇 |
2010年 | 5332篇 |
2009年 | 4903篇 |
2008年 | 3110篇 |
2007年 | 2364篇 |
2006年 | 2031篇 |
2005年 | 1783篇 |
2004年 | 1569篇 |
2003年 | 1447篇 |
2002年 | 1225篇 |
2001年 | 1096篇 |
2000年 | 933篇 |
1999年 | 843篇 |
1998年 | 720篇 |
1997年 | 774篇 |
1996年 | 581篇 |
1995年 | 578篇 |
1994年 | 502篇 |
1993年 | 380篇 |
1992年 | 335篇 |
1991年 | 261篇 |
1990年 | 201篇 |
1989年 | 179篇 |
1988年 | 150篇 |
1987年 | 131篇 |
1985年 | 466篇 |
1984年 | 566篇 |
1983年 | 453篇 |
1982年 | 418篇 |
1981年 | 406篇 |
1980年 | 363篇 |
1979年 | 324篇 |
1978年 | 276篇 |
1977年 | 208篇 |
1976年 | 247篇 |
1975年 | 250篇 |
1974年 | 196篇 |
1973年 | 174篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
目的:观察理筋通督手法治疗颈性眩晕的临床疗效。方法:将120例颈性眩晕患者随机分成3组,理筋通督组、传统手法组及安慰剂组。理筋通督组采用理筋通督手法;传统手法组采用传统手法;安慰剂组口服维生素C。结果:理筋通督手法可显著减缓患者基底动脉舒张期最低血流速度(P0.05)。理筋通督组有效率为93.67%,传统手法组有效率为67.5%,安慰剂组有效率为17.5%,3组比较差异有统计学意义(P0.05),理筋通督组明显优于其他两组。结论:理筋通督手法治疗颈性眩晕临床疗效显著。 相似文献
3.
4.
5.
《Revista espa?ola de anestesiología y reanimación》2020,67(5):245-252
Pneumonia caused by coronavirus, which originated in Wuhan, China, in late 2019, has been spread around the world already becoming a pandemic. Unfortunately, there is not yet a specific vaccine or effective antiviral drug for treating COVID-19. Many of these patients deteriorate rapidly and require intubation and are mechanically ventilated, which is causing the collapse of the health system in many countries due to lack of ventilators and intensive care beds.In this document we review two simple adjuvant therapies to administer, without side effects, and low cost that could be useful for the treatment of acute severe coronavirus infection associated with acute respiratory syndrome (SARS-CoV-2). Vitamin C, a potent antioxidant, has emerged as a relevant therapy due to its potential benefits when administered intravenous. The potential effect of vitamin C in reducing inflammation in the lungs could play a key role in lung injury caused by coronavirus infection. Another potential effective therapy is ozone: it has been extensively studied and used for many years and its effectiveness has been demonstrated so far in multiples studies. Nevertheless, our goal is not to make an exhaustive review of these therapies but spread the beneficial effects themselves.Obviously clinical trials are necessaries, but due to the potential benefit of these two therapies we highly recommended to add to the therapeutic arsenal. 相似文献
6.
Simeprevir added to peginterferon and ribavirin lessens time with fatigue,depressive symptoms and functional limitations in patients with chronic hepatitis C compared with peginterferon and ribavirin: results from 1161 patients in the QUEST‐1, QUEST‐2 and PROMISE studies
下载免费PDF全文
![点击此处可从《Journal of viral hepatitis》网站下载免费的PDF全文](/ch/ext_images/free.gif)
J. Scott L. Gilles M. Fu E. Brohan C. Panter R. Arbuckle W. Jessner M. Beumont 《Journal of viral hepatitis》2015,22(8):639-650
The value of adding simeprevir (SMV) vs placebo (PBO) to peginterferon and ribavirin (PR) for treatment of chronic hepatitis C virus infection was examined using patient‐reported outcomes (PROs); further, concordance of PROs with virology endpoints and adverse events (AEs) was explored. Patients (n = 768 SMV/PR, n = 393 PBO/PR) rated fatigue (FSS), depressive symptoms (CES‐D) and functional impairment (WPAI: Hepatitis C Productivity, Daily Activity and Absenteeism) at baseline and throughout treatment in three randomised, double‐blind trials comparing the addition of SMV or PBO during initial 12 weeks of PR. PR was administered for 48 weeks (PBO group) and 24/48 weeks (SMV group) using a response‐guided therapy (RGT) approach. Mean PRO scores (except Absenteeism) worsened from baseline to Week 4 to the same extent in both groups but reverted after Week 24 for SMV/PR and only after Week 48 for PBO/PR. Accordingly, there was a significantly lower area under the curve (baseline–Week 60, AUC60) and fewer weeks with clinically important worsening of scores in the SMV/PR group at any time point. Incidences of patients with fatigue and anaemia AEs were similar in both groups, but FSS scores showed that clinically important increases in fatigue lasted a mean of 6.9 weeks longer with PBO/PR (P < 0.001). PRO score subgroup analysis indicated better outcomes for patients who met the criteria for RGT or achieved sustained virological response 12 weeks post‐treatment (SVR12); differences in mean PRO scores associated with fibrosis level were only observed with PBO/PR. Greater efficacy of SMV/PR enabled reduced treatment duration and reduced time with PR‐related AEs without adding to AE severity. 相似文献
7.
Primary cutaneous anaplastic large cell lymphomas with 6p25.3 rearrangement exhibit particular histological features
下载免费PDF全文
![点击此处可从《Histopathology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
8.
9.
10.
目的:探讨老年人桡骨远端C型骨折的手术治疗与非手术治疗的疗效差异,评价两种方法的优缺点。方法回顾性分析2009-12—2011-12收治的老年桡骨远端C型骨折68例,按照治疗方法分为A组(手术组)及B组(非手术组),统计分析两组患者的临床资料。结果 A组33例, B组35例,平均随访21.5个月。两组患者的年龄、骨折类型均无差异(P>0.05);术后影像学指标A组优于B组,骨折愈合时间B组优于A组,治疗成本A组大于B组(P<0.05);Cooney评分早期A组优于B组,1年后两组无差异,两组的并发症无差异(P>0.05)。结论老年人桡骨远端C型骨折手术治疗较非手术治疗可获得更好的复位及早期功能,但远期功能恢复无差异。 相似文献